McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Civil Engineering .
Chapters
| 451. |
The pump that uses a relatively smaller amount of liquid is called |
| A. | Froth pump |
| B. | Reciprocating pump |
| C. | Double acting |
| D. | Bicycle pump View Answer |
| Answer» B. Reciprocating pump | |
| 452. |
Sliding vanes in pumps are held by |
| A. | Draft pins |
| B. | Whirl wheels |
| C. | Springs |
| D. | Nails View Answer |
| Answer» C. Springs | |
| 453. |
Air vessel accumulates excess quantity of |
| A. | Vapor |
| B. | Water |
| C. | Heat |
| D. | Pressure View Answer |
| Answer» B. Water | |
| 454. |
In which pump is the liquid in contact with both the sides of the plunger |
| A. | Froth pump |
| B. | Single acting |
| C. | Double acting |
| D. | Bicycle pump View Answer |
| Answer» C. Double acting | |
| 455. |
When a cylinder has inlet and outlet ports at each end, then it is called as |
| A. | Double acting |
| B. | Air lift pumps |
| C. | Reciprocating pumps |
| D. | Centrifugal pumps View Answer |
| Answer» A. Double acting | |
| 456. |
Turbomachines work under |
| A. | Newtons first law |
| B. | Newtons second law |
| C. | Newtons third law |
| D. | Kepler’s law View Answer |
| Answer» B. Newtons second law | |
| 457. |
The main function of nozzle is to |
| A. | Varying temperatures |
| B. | Pressure variations |
| C. | Load variations |
| D. | Heat variations View Answer |
| Answer» B. Pressure variations | |
| 458. |
When the piston moves forward, liquid is drawn |
| A. | Into the cylinder |
| B. | Away from the cylinder |
| C. | Into the draft tube |
| D. | Away from the draft tube View Answer |
| Answer» A. Into the cylinder | |
| 459. |
In a reciprocating pump, with the change in discharge pressure, |
| A. | The Volume delivered increases |
| B. | The volume delivered decreases |
| C. | Volume delivered remains the same |
| D. | Volume delivered is independent View Answer |
| Answer» C. Volume delivered remains the same | |
| 460. |
The amount of fluid that leaks internally is called |
| A. | Head race |
| B. | Slip |
| C. | Tail race |
| D. | Internal friction View Answer |
| Answer» B. Slip | |
| 461. |
For a good condition, slip should be_ |
| A. | Below 1 percent |
| B. | 1 to 2 percent |
| C. | 3 to 4 percent |
| D. | Above 5 percent View Answer |
| Answer» A. Below 1 percent | |
| 462. |
If the slip is above 5 percent, the pumps needs to be |
| A. | Dragged |
| B. | Overhauled |
| C. | Retracted |
| D. | Intermittent View Answer |
| Answer» B. Overhauled | |
| 463. |
Slip in a pump depends on which of following parameters? |
| A. | Wear |
| B. | Pressure |
| C. | Temperature |
| D. | Heat View Answer |
| Answer» A. Wear | |
| 464. |
Internal breakage in a pump mainly takes place when |
| A. | Discharge pressure is increased |
| B. | Temperature is increased |
| C. | Heat leads to expansion |
| D. | Corrosion takes place View Answer |
| Answer» A. Discharge pressure is increased | |
| 465. |
The output that we get after an internal breakage can be classed as |
| A. | An increase |
| B. | A decrease |
| C. | Constant |
| D. | An independent variable View Answer |
| Answer» C. Constant | |
| 466. |
When the hydraulic fluid forms on only one side of the piston, it is called |
| A. | Single acting pump |
| B. | Double acting pump |
| C. | Froth pump |
| D. | Draft tube View Answer |
| Answer» A. Single acting pump | |
| 467. |
A pump with two steams and two water cylinders is called |
| A. | Single acting pump |
| B. | Double acting pump |
| C. | Froth pump |
| D. | Duplex pump View Answer |
| Answer» D. Duplex pump View Answer | |
| 468. |
When an external force is not available in a pump, we use a |
| A. | Hydraulic cylinder |
| B. | Slip gauge |
| C. | Tail race |
| D. | Heater View Answer |
| Answer» A. Hydraulic cylinder | |
| 469. |
Reciprocating pumps give a flow |
| A. | Uniform |
| B. | Non- uniform |
| C. | Pulsating |
| D. | Sinusoidal View Answer |
| Answer» C. Pulsating | |
| 470. |
Suction stroke becomes difficult to pump |
| A. | High temperature fluids |
| B. | Viscous fluids |
| C. | Fluids with abrasives |
| D. | High velocity fluids View Answer |
| Answer» B. Viscous fluids | |
| 471. |
Piston pumps are very |
| A. | Expensive |
| B. | Cheap |
| C. | Reasonable |
| D. | Intricate View Answer |
| Answer» A. Expensive | |
| 472. |
What is the full form of DAC? |
| A. | Digital Acting pumps |
| B. | Double acting pumps |
| C. | Data acting pumps |
| D. | Draft tube pumps View Answer |
| Answer» B. Double acting pumps | |
| 473. |
Which among the following is not a multi-cylinder pump? |
| A. | Double acting simplex |
| B. | Single acting duplex |
| C. | Double acting duplex |
| D. | Single acting triplex View Answer |
| Answer» A. Double acting simplex | |
| 474. |
A pressure vessel is used to hold |
| A. | Air |
| B. | Gases |
| C. | Molecules |
| D. | Solids View Answer |
| Answer» B. Gases | |
| 475. |
A tank that is used to protect closed water heating systems is called |
| A. | Pressure vessel |
| B. | Expansion vessel |
| C. | Heat vessel |
| D. | Auto vessel View Answer |
| Answer» B. Expansion vessel | |
| 476. |
How is the construction of the vessel tested? |
| A. | Uniform testing |
| B. | Continuous testing |
| C. | Pulsating test |
| D. | Non-destructive testing View Answer |
| Answer» D. Non-destructive testing View Answer | |
| 477. |
Where is the excess quantity of water from the pump accumulated? |
| A. | Froth tube |
| B. | Draft tube |
| C. | Air vessels |
| D. | Bicycle pump View Answer |
| Answer» C. Air vessels | |
| 478. |
What is the shape of a pressure vessel? |
| A. | Square |
| B. | Spheres |
| C. | Cones |
| D. | All the shapes View Answer |
| Answer» D. All the shapes View Answer | |
| 479. |
Pressure vessel closures are used to |
| A. | Avoid breakage |
| B. | Avoid leakage |
| C. | Retain structures |
| D. | Maintain pressure View Answer |
| Answer» C. Retain structures | |
| 480. |
The main function of nozzle is to |
| A. | Varying temperatures |
| B. | Pressure variations |
| C. | Load variations |
| D. | Heat variations |
| Answer» B. Pressure variations | |
| 481. |
Which among the following control the flow rate? |
| A. | Valve |
| B. | Pump |
| C. | Head |
| D. | Tank pipe |
| Answer» A. Valve | |
| 482. |
Force exerted by a jet on a stationery plate happens in how many cases? |
| A. | 3 cases |
| B. | 2 cases |
| C. | 1 case |
| D. | Nil |
| Answer» A. 3 cases | |
| 483. |
Force exerted by a jet on a moving plate happens in how many cases? |
| A. | 3 cases |
| B. | 2 cases |
| C. | 1 case |
| D. | Nil |
| Answer» A. 3 cases | |
| 484. |
In a stationery vertical plate, the jet after striking the plate will move |
| A. | In opposite direction |
| B. | Along the plate |
| C. | Perpendicular to the plate |
| D. | Parallel to the plate |
| Answer» B. Along the plate | |
| 485. |
At what angle does the jet deflect after striking a stationery vertical plate? |
| A. | 30 |
| B. | 60 |
| C. | 90 |
| D. | 0 |
| Answer» C. 90 | |
| 486. |
The velocity component after striking the surface will be_ |
| A. | One |
| B. | Zero |
| C. | Infinity |
| D. | Negative |
| Answer» B. Zero | |
| 487. |
Which among the following is the formula for Force when it strikes the plate? |
| A. | pav2 |
| B. | pav |
| C. | pa |
| D. | maE |
| Answer» A. pav2 | |
| 488. |
To derive pav2, we take final velocity minus the initial velocity. |
| A. | True |
| B. | False |
| C. | none |
| D. | none |
| Answer» B. False | |
| 489. |
The mass of water per sec striking the plate is |
| A. | pav2 |
| B. | pav |
| C. | pa |
| D. | maE |
| Answer» B. pav | |
| 490. |
Which among the following is formula for force when it acts along the direction of flow? |
| A. | pav2Sin2θ |
| B. | pav Sin2θ |
| C. | pa Sin2θ |
| D. | maE Sin2θ |
| Answer» A. pav2Sin2θ | |
| 491. |
Which among the following is a formula for force when it acts perpendicular to the direction of flow? |
| A. | pav2 SinθCosθ |
| B. | pav Sin2θ |
| C. | pa Sin2θ |
| D. | maE Sin2θ |
| Answer» A. pav2 SinθCosθ | |
| 492. |
A jet strikes a curved plate at its |
| A. | Sides |
| B. | Surface |
| C. | Centre |
| D. | Does not strike |
| Answer» C. Centre | |
| 493. |
During a weak jump, the value of Froude lies in between |
| A. | 1 to 2.5 |
| B. | 2.5 to 3.5 |
| C. | Less than 1 |
| D. | Zero |
| Answer» A. 1 to 2.5 | |
| 494. |
During an oscillating jump, the value of Froude lies in between |
| A. | 1 to 2.5 |
| B. | 2.5 to 4.5 |
| C. | Less than 1 |
| D. | Zero |
| Answer» A. 1 to 2.5 | |
| 495. |
A jet after striking a smooth plate comes out with a velocity. |
| A. | Increased |
| B. | Decreased |
| C. | Same |
| D. | Zero |
| Answer» C. Same | |
| 496. |
Component of velocity in direction of jet is -VCosθ |
| A. | True |
| B. | False |
| C. | none |
| D. | none |
| Answer» A. True | |
| 497. |
Jet propulsion is a method of generating propulsive force by reaction of |
| A. | Accelerating mass |
| B. | Volume |
| C. | Mass flow rate |
| D. | Velocity |
| Answer» A. Accelerating mass | |
| 498. |
The propulsive force drives the jet in the |
| A. | Backward direction |
| B. | Forward direction |
| C. | Perpendicular direction |
| D. | Parallel movement |
| Answer» B. Forward direction | |
| 499. |
Jet propulsion works on the principle of |
| A. | Newton’s first law |
| B. | Newton’s second law |
| C. | Newton’s third law |
| D. | Thermodynamic properties |
| Answer» C. Newton’s third law | |
| 500. |
What does Cv in jet propulsion equation stand for? |
| A. | Area of orifice |
| B. | Velocity |
| C. | Temperature coefficient |
| D. | Velocity coefficient |
| Answer» D. Velocity coefficient | |
Done Studing? Take A Test.
Great job completing your study session! Now it's time to put your knowledge to the test. Challenge yourself, see how much you've learned, and identify areas for improvement. Don’t worry, this is all part of the journey to mastery. Ready for the next step? Take a quiz to solidify what you've just studied.